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Converting int to bytes in Python 3
...to create some type of buffer for which you need some memory of given size allocated. I often use this when initializing arrays or expanding some file by writing zeros to it.
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In-place type conversion of a NumPy array
...d answer. However arr_.astype(new_dtype, copy=False) still returns a newly allocated array. How to satisfied the dtype, order, and subok requirements to return a copy of array? I don't solve it.
– 蒋志强
Aug 5 '19 at 21:20
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How to Sort a List by a property in the object
...ory you are using is not an issue, this solution avoids unnecessary memory allocation which is EXTREMELY expensive. This option is just as simple codewise and an order of magnitude faster.
– Cdaragorn
Dec 14 '16 at 20:58
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Looping a video with AVFoundation AVPlayer?
...and in its selector, loop your video
AVPlayerItem *video = [[AVPlayerItem alloc] initWithURL:videoURL];
[self.player insertItem:video afterItem:nil];
[self.player play];
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Which comment style should I use in batch files?
..., also a multiline caret at the line end, if it's not the end of the first token.
REM This is a comment, the caret is ignored^
echo This line is printed
REM This_is_a_comment_the_caret_appends_the_next_line^
echo This line is part of the remark
REM followed by some characters .:\/= works a bit...
SignalR: Why choose Hub vs. Persistent Connection?
...ed from you but with persistent connections the message is raw and has be tokenized and parsed back and forth. If the message size is important then also note that the payload of a persistent connection is much less that that of a hub.
When it comes to the communication model persistent connection...
How do I find the length of an array?
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Doing sizeof( myArray ) will get you the total number of bytes allocated for that array. You can then find out the number of elements in the array by dividing by the size of one element in the array: sizeof( myArray[0] )
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How to set selected value of jquery select2?
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Html:
<select id="lang" >
<option value="php">php</option>
<option value="asp">asp</option>
<option value="java">java</option>
</select>
JavaScript:
$("#lang").select2().select2('val','asp');
jsfiddle
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Using Java 8 to convert a list of objects into a string obtained from the toString() method
...d guess that iterative string concatenation (reduction) requires array (re)allocation at each iteration, which makes it O(n^2). join on the other side would preallocate a single array large enough to store the final string before populating it, making it O(n).
– Eli Korvigo
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Is it possible to include a file in your .gitconfig
...ommand which among other things, allows you to have GITHUB_USER and GITHUB_TOKEN environment variables. Which will override the settings in the local .gitconfig file.
Then to make it seamless the user you pointed to aliased alias git=hub in his ZSH config. You should be able to then source a local...